Schedule: a typical Saturday (the flights of Jul 25, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
JETBLUE · FLIGHT B6 803
SCHEDULED · TYPICAL SCHEDULE
Saturday, October 3
B6 803 · JFK → SJU
departs 4:30 PM ET · arrives 8:38 PM AT
Forecast issued Wed 11:00 PM ET · 66h before departure
Watch this flight
Other days
Today 41%
Fri 10/2 63%
Sat 10/3
Sun 10/4 39%
Mon 10/5 37%
Tue 10/6 27%
Wed 10/7 32%
Odds over time
Arrive at SJU more than 15 minutes late?
37%
chance · ±3 pts
+2 pts · 24h
HOW SURE WE ARE
Moderate. The odds now blend history with early weather forecasts.
Arrive 15+ late
37%
Leave 15+ late
42%
Arrive 1h+ late
13%
Cancelled
<1%
MOSTLY HISTORY
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
4.8d
Now
2d
1d
12h
6h
Departs
Lands
Arrive at SJU more than 15 minutes late?
Calm-weather odds: 24% · changed +2 pts in 24h
+2 pts
37%
Yes 37%
No 63%
Leave JFK more than 15 minutes late?
Calm-weather odds: 31% · changed +2 pts in 24h
+2 pts
42%
Yes 42%
No 58%
Arrive at SJU more than an hour late?
Calm-weather odds: 6% · changed +1 pt in 24h
+1 pt
13%
Yes 13%
No 87%
Cancelled?
Calm-weather odds: <1% · changed −1 pt in 24h
−1 pt
<1%
Yes <1%
No 99%
How late will it get to SJU?
On time or early
63%
15–30 min late
14%
30 min–1 hour late
10%
1–2 hours late
9%
Over 2 hours late
4%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
B6's recent on-time record
↑
This flight has been late 33% of the time recently
↑
Later flights pick up delays from earlier in the day
↓
Mostly benign weather forecast at JFK
↓
JFK is quiet at that time
Weather at each end
JFK (origin)
Gusts 16 kt Ceiling 5,867 ft Visibility 10+ mi Precip 0.04 in
SJU (destination)
Gusts 13 kt Ceiling 4,100 ft Visibility 10+ mi Precip 0.10 in
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.